JP3955002B2 - The video display device - Google Patents

The video display device Download PDF

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JP3955002B2
JP3955002B2 JP2003316812A JP2003316812A JP3955002B2 JP 3955002 B2 JP3955002 B2 JP 3955002B2 JP 2003316812 A JP2003316812 A JP 2003316812A JP 2003316812 A JP2003316812 A JP 2003316812A JP 3955002 B2 JP3955002 B2 JP 3955002B2
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opening
video
video display
display device
display apparatus
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健 増谷
五郎 濱岸
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三洋電機株式会社
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30Image reproducers
    • H04N13/349Multi-view displays for displaying three or more geometrical viewpoints without viewer tracking
    • H04N13/351Multi-view displays for displaying three or more geometrical viewpoints without viewer tracking for displaying simultaneously
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30Image reproducers
    • H04N13/302Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
    • H04N13/31Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using parallax barriers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30Image reproducers
    • H04N13/302Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
    • H04N13/317Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using slanted parallax optics
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30Image reproducers
    • H04N13/324Colour aspects

Description

この発明は、観察者に立体視させたり複数の観察者に異なる映像を見せたりするのに利用される映像表示装置に関する。 This invention relates to a video display apparatus that is used to show them different images to a plurality of observers or to stereoscopically observer.

従来より、特殊な眼鏡を必要とせずに立体映像表示を実現する方法しとて、パララックスバリア方式やレンチキュラーレンズ方式等が知られているが、これらの方式は両眼視差を有する右眼用映像と左眼用映像とを、例えば縦ストライプ状に画面に交互に表示し、この表示映像をパララックスバリアやレンチキュラーレンズ等で分離して観察者の右眼と左眼に各々導くことで立体視を行わせるものである。 Conventionally, the O and how to realize a stereoscopic image display without requiring special glasses, but parallax barrier system or a lenticular lens type or the like is known, for the right eye these methods having binocular parallax the video and the left-eye image, for example, to display the vertical stripes alternately on the screen, three-dimensional by directing each right and left eyes of the viewer separates the display image in a parallax barrier or a lenticular lens, it is intended to carry out the vision.

図3は4眼式立体視方式の立体映像表示装置の原理を例示した説明図である。 Figure 3 is an explanatory view illustrating the principle of the stereoscopic image display device 4 view stereovision system. 画面11の水平方向に両眼視差を有する映像(1)と映像(2)と映像(3)と映像(4)とが所定ピッチで並び、この「映像(1)映像(2)映像(3)映像(4)」の最小単位映像グループが繰り返し存在している。 Along with video (1) having a binocular parallax in the horizontal direction of the screen 11 and the image (2) and the image (3) and the video (4) at a predetermined pitch, the "video (1) Video (2) Video (3 ) video (4) is the smallest unit of the video group of "have repeatedly exist. パララックスバリア12の各開口12aは各最小単位映像グループに対応して存在し、各最小単位映像グループである「映像(1)映像(2)映像(3)映像(4)」を分離して観察者に与える。 Each opening 12a of the parallax barrier 12 is present in correspondence with the minimum unit video groups, which are the smallest unit video group separates the "video (1) Video (2) Video (3) Video (4)" give to the observer. これにより、観察者は立体視が行なえることになる。 Thus, the viewer stereoscopic vision will be performed.

図4は、4つの異なる映像をそれぞれ異なる観察者に見せる映像表示装置の原理を例示した説明図である。 Figure 4 is an explanatory view illustrating the principle of the image display device to show four different images to different observers. この映像表示装置も図3に示した立体映像表示装置と同様に、画面11とパララックスバリア12とから成る。 The image display device also similar to the stereoscopic image display device shown in FIG. 3, consisting of the screen 11 and the parallax barrier 12. パララックスバリア12の各開口12aは各最小単位映像グループである「映像(1)映像(2)映像(3)映像(4)」を分離して観察者に与える。 Each opening 12a of the parallax barrier 12 is provided to the viewer separates the "video (1) Video (2) Video (3) Video (4)" is the smallest unit video group. これにより、各観察者は互いに異なる映像を見ることになる。 Accordingly, each viewer will see different images from each other.

なお、同一映像を縦方向の画素を利用して表示する場合には、パララックスバリア12の開口12aは、図5に示すように、一般に縦ストライプ状に形成される。 Incidentally, when displaying the same image using the vertical pixel, the opening 12a of the parallax barrier 12, as shown in FIG. 5, it is generally formed in a vertical stripe shape. また、同一映像を縦方向の画素を利用して表示する場合には、パララックスバリアの開口を斜め方向に並べる方法もある(特許文献1参照)。 Moreover, when displaying by utilizing the vertical direction of the pixels of the same video, there is a method of arranging apertures of the parallax barrier in an oblique direction (see Patent Document 1).
特許第3096613号 Patent No. 3096613

ところで、観察者の眼に画素からの光が開口12aを介して与えられるとき、図6の(a)に示すように、画素全体の光が与えられる状態と、同図の(b)に示すように非画素部が見えてしまう状態とが存在し、前者明部と後者暗部の混在が観察者に対してモアレを感じさせてしまうことになる。 Incidentally, when the light from the pixel to the eye of the observer is given through the opening 12a, as shown in (a) of FIG. 6, shown in a state given the light of the entire pixel, in FIG (b) as there is a state where the non-pixel portion is seen, so that the former bright part and the latter dark part mixed will feel moire with respect to the observer.

前記モアレを低減するためには、図7に示しているように、開口12aを大きくすればよい。 To reduce the moire, as shown in FIG. 7, it may be an opening 12a larger. 大きな開口12aであれば、同図(a)(b)(c)に示すように、画素と開口12aとの位置関係が変化しても、略同じ光量が観察者の眼に導かれることになるため、明部と暗部の差が低減されてモアレは軽減される。 If large opening 12a, as shown in FIG. (A) (b) (c), even after changing the positional relationship between the pixel and the aperture 12a, substantially the same amount of light is guided to the observer's eye made for the difference between the light and dark portions is reduced moiré is reduced. しかしながら、大きな開口12aを採用すると、クロストークを招来してしまう。 However, when employing a large opening 12a, resulting in lead to crosstalk. 特に、画素ピッチが0.04mm程度の画面(ディスプレイ)では、モアレ低減のために開口12aの幅を0.08mm程度とすることが必要になり、このような画素に対して相対的に大きな開口ではクロストークが非常に多くなる。 In particular, the screen pixel pitch of about 0.04 mm (display), becomes the width of the opening 12a needs to be about 0.08mm for moiré reduction, relatively large opening for such pixel in the cross-talk is very large. また、図7に示した開口12aでは、同図(a)乃至(c)の間で回折の仕方が変わるため、モアレを十分に低減することができない。 Moreover, the opening 12a shown in FIG. 7, since the way of diffraction between the FIG (a) to (c) is changed, it is impossible to sufficiently reduce the moire.

この発明は、上記の事情に鑑み、分離手段である開口を工夫することでクロストーク及びモアレの発生を低減することができる映像表示装置を提供することを目的とする。 This invention has been made in view of the above circumstances, and an object thereof is to provide an image display device capable of reducing the occurrence of crosstalk and moire devising the opening is the separation unit.

この発明の映像表示装置は、上記の課題を解決するために、画面に表示された互いに異なる映像を分離手段である開口にて分離する映像表示装置において、前記異なる映像の表示を担う最小単位映像グループは行毎に一画素ずつ横方向にずれて存在し、このずれに対応して前記開口の幅を規定する縁部が斜めに形成され、且つ前記開口は各行の最小単位映像グループに跨がって連続形成され、前記縁部は一直線に存在することを特徴とする。 Image display device of the present invention is to solve the above problems, there is provided an image display apparatus for separating at opening a separating means different images to each other which is displayed on the screen, the smallest unit video responsible for displaying the different images group is present transversely offset by one pixel in each row, the edge defining the width of the opening in response to this deviation is formed obliquely, and said openings extend over a minimum unit GoP each row What are continuously formed, said edge is characterized by the presence in a straight line.

上記の構成であれば、開口と画素との相対位置変化による明るさの変化が滑らかになり、また、光の回折の影響が平均化されて殆どなくなり、クロストークを防止しつつモアレを軽減することができる。 In the above-mentioned configuration, changes in brightness due to the relative position change between the opening and the pixel becomes smooth, and the influence of diffraction of light is eliminated almost averaged, to reduce moire while preventing crosstalk be able to.

前記縁部の傾きをθとし、垂直画素ピッチをPvとし、水平画素ピッチをPhとすると、Tanθ=Ph/Pvに設定されているのがよい。 And the inclination of the edge theta, the vertical pixel pitch is Pv, when the horizontal pixel pitch and Ph, it is preferable set to Tanθ = Ph / Pv.

また、これら構成の映像表示装置において、前記最小単位映像グループは複数視点映像から成り、且つ視点並び順に並ぶのがよい。 Further, the image display according to these configurations, the minimum unit image group composed of a plurality viewpoint video, and it is preferable arranged in viewpoint sorted. また、前記開口の幅が水平画素ピッチに一致しているのがよい。 Further, it is preferable width of the opening is coincident with the horizontal pixel pitch.

この発明によれば、開口と画素との相対位置変化による明るさの変化が滑らかになり、また、光の回折の影響が平均化されて殆どなくなり、クロストークを防止しつつモアレを軽減することができるという効果を奏する。 According to the invention, changes in brightness due to the relative position change between the opening and the pixel becomes smooth, and the influence of diffraction of light is eliminated almost are averaged, reducing the moiré while preventing crosstalk there is an effect that it is.

以下、この発明の実施形態の映像表示装置を図1及び図2に基づいて説明していく。 Hereinafter, it will be described on the basis of an image display device of an embodiment of the present invention in FIGS. なお、映像表示装置の全体構成は従来項で述べた図3や図4の構成を採用できるものであり、説明の重複による冗長をさけるため、全体構成の説明については省略している。 The overall configuration of an image display device are those capable of adopting the configuration of FIG. 3 and FIG. 4 described in the prior section, in order to avoid redundancy by duplication of description is omitted for a description of the overall configuration.

図1に示す4眼式構成においては、最小単位映像グループである4つの映像(画素)「映像(1)映像(2)映像(3)映像(4)」が画面の水平方向に繰り返し並んでおり、この最小単位映像グループは行毎に一画素ずつ横方向にずれて存在している。 In 4-lens configuration shown in FIG. 1, the smallest unit GoP is a four image (pixel) "Video (1) Video (2) Video (3) Video (4)" is lined up repeatedly in the horizontal direction of the screen cage, the smallest unit GoP is present laterally offset by one pixel in each row. 立体視用映像表示装置とする場合は、前記最小単位映像グループは複数視点映像から成り、上記のごとく視点並び順(1,2,3,4の順)に並ぶこととなる。 If the stereoscopic image display apparatus, the minimum unit image group composed of a plurality viewpoint image, and thus arranged in the above as the viewpoint sorted (order of 1, 2, 3, 4). 前記最小単位映像グループの横方向のずれに対応して開口(映像分離手段)1の幅を規定する縁部が斜めに形成され、且つ前記開口1は各行の最小単位映像グループに跨がって連続形成され、前記縁部は一直線に存在する。 What the minimum unit edge corresponding to the lateral offset defines the width of the aperture (video separating means) 1 of the image group is formed obliquely, and the opening 1 span the smallest unit GoP each row are continuously formed, said edge portion is present in a straight line. すなわち、行毎に一画素ずつ横方向にずれて存在する複数の最小単位映像グループに対応して、一つの斜めストライプ状の開口1が形成されている。 That is, in correspondence with a plurality of minimum unit picture group that exists laterally offset by one pixel in each row, the opening 1 of a diagonal stripe is formed. そして、前記縁部の垂直線に対する傾きをθとし、垂直画素ピッチをPvとし、水平画素ピッチをPhとすると、Tanθ=Ph/Pvとなるように設定している。 Then, the inclination θ with respect to the vertical line of the edge, the vertical pixel pitch is Pv, when the horizontal pixel pitch Ph, are set so that Tanθ = Ph / Pv. 更に、開口1の幅が水平画素ピッチ(Ph)に一致するように構成している。 Furthermore, the width of the opening 1 is configured to conform to the horizontal pixel pitch (Ph).

図2(a)に示す4眼式構成においても同様に、最小単位映像グループである4つの映像(画素)「映像(1)映像(2)映像(3)映像(4)」が画面の水平方向に繰り返し並んでおり、この最小単位映像グループは行毎に一画素ずつ横方向にずれて存在している。 Similarly in 4-eye type configuration shown in FIG. 2 (a), the smallest unit GoP is a four image (pixel) "Video (1) Video (2) Video (3) Video (4)" is the horizontal screen are arranged repeatedly in the direction, the smallest unit GoP is present laterally offset by one pixel in each row. 立体視用映像表示装置とする場合は、前記最小単位映像グループは複数視点映像から成り、上記のごとく視点並び順(1,2,3,4の順)に並ぶこととなる。 If the stereoscopic image display apparatus, the minimum unit image group composed of a plurality viewpoint image, and thus arranged in the above as the viewpoint sorted (order of 1, 2, 3, 4). 前記最小単位映像グループの横方向のずれに対応して開口(映像分離手段)1の幅を規定する縁部が斜めに形成され、且つ前記開口1は各行の最小単位映像グループに跨がって連続形成され、前記縁部は一直線に存在する。 What the minimum unit edge corresponding to the lateral offset defines the width of the aperture (video separating means) 1 of the image group is formed obliquely, and the opening 1 span the smallest unit GoP each row are continuously formed, said edge portion is present in a straight line. そして、前記縁部の傾きをθとし、垂直画素ピッチをPvとし、水平画素ピッチをPhとすると、Tanθ=Ph/Pvとなるように設定している。 Then, the inclination of the edge theta, the vertical pixel pitch is Pv, when the horizontal pixel pitch Ph, are set so that Tanθ = Ph / Pv. 更に、開口1の幅が水平画素ピッチ(Ph)に一致するように構成している。 Furthermore, the width of the opening 1 is configured to conform to the horizontal pixel pitch (Ph).

図1の構成においては、どの位置でも画素が開口1の縁からはみ出ることになる画素幅を有するのに対し、図2(a)の構成では、適当な位置で画素が開口1の縁からはみ出ないこととなる画素幅を有しており、更にクロストークが軽減されたものとなっている。 In the configuration of FIG. 1, the pixel at any position whereas with a pixel width which will be protruding from the edge of the opening 1, in the configuration of FIG. 2 (a), the pixel is protruded from the edge of the opening 1 in the appropriate position has a pixel width that would not have become a further crosstalk is alleviated. ここで、図2(b)に示すように、画素の開口高さをVとし、適当な位置で画素が開口1の縁からはみ出ないこととなる画素の開口幅をHとすると、H=Ph×(Pv−V)/Pvとなる。 Here, as shown in FIG. 2 (b), when the opening height of the pixels is V, the pixel at the appropriate position and the opening width of the pixels that would not protrude from the edge of the opening 1 H, H = Ph × a (Pv-V) / Pv.

この発明の実施形態を示す図であって、映像表示装置における映像配列及び分離手段の開口を示した説明図である。 A diagram showing an embodiment of the present invention, is an explanatory view showing the opening of the video sequence and separating means in a video display device. この発明の実施形態を示す図であって、同図(a)は映像表示装置における映像配列及び分離手段の開口を示した説明図であり、同図(b)は開口と画素寸法とを示した説明図である。 A diagram showing an embodiment of the present invention, FIG. (A) is an explanatory view showing the opening of the video sequence and separation means in the image display device, and FIG. (B) shows the opening and pixel size is an explanatory view was. 4眼式立体映像表示装置を示した説明図である。 4 is an explanatory diagram showing a binocular stereoscopic image display device. 4つの異なる映像を観察者にそれぞれ導くことができる映像表示装置を示した説明図である。 The observer four different images is an explanatory view showing an image display device capable of directing each. 従来の画面上の画素並びと開口との関係を示した説明図である。 It is an explanatory diagram showing a relationship between the pixel arrangement and the opening of the conventional screen. 従来の画面上の画素並びと開口との関係を示した説明図である。 It is an explanatory diagram showing a relationship between the pixel arrangement and the opening of the conventional screen. 従来の画面上の画素並びと開口との関係を示した説明図である。 It is an explanatory diagram showing a relationship between the pixel arrangement and the opening of the conventional screen.

符号の説明 DESCRIPTION OF SYMBOLS

1 開口 1 opening

Claims (3)

  1. 画面に表示された互いに異なる映像を分離手段である開口にて分離する映像表示装置において、前記異なる映像の表示を担う最小単位映像グループは行毎に一画素ずつ横方向にずれて存在し、このずれに対応して前記開口の幅を規定する縁部が斜めに形成され、且つ前記開口は各行の最小単位映像グループに跨がって連続形成され、前記縁部は一直線に存在しており、前記開口の幅が前記画面の水平画素ピッチに一致していることを特徴とする映像表示装置。 A video display apparatus for separating at opening a separating means different images to each other which is displayed on the screen, the smallest unit GoP responsible for displaying the different images are present laterally offset by one pixel in each row, the edges defining the width of the opening corresponding to the deviation is formed obliquely, and said opening is formed continuously straddling smallest unit GoP of each row, the edge portion is present in a straight line, a video display device, characterized in that the width of the opening is coincident with the horizontal pixel pitch of the screen.
  2. 請求項1に記載の映像表示装置において、前記縁部の傾きをθとし、垂直画素ピッチをPvとし、水平画素ピッチをPhとすると、 The video display apparatus according to claim 1, and the inclination of the edge theta, the vertical pixel pitch is Pv, when the horizontal pixel pitch and Ph,
    Tanθ=Pv/Ph Tanθ = Pv / Ph
    に設定されたことを特徴とする映像表示装置。 A video display device, characterized in that it is set to.
  3. 請求項1又は請求項2に記載の映像表示装置において、前記最小単位映像グループは複数視点映像から成り、且つ視点並び順に並ぶことを特徴とする映像表示装置。 The video display apparatus according to claim 1 or claim 2, image display apparatus, wherein the minimum unit image group composed of a plurality viewpoint video, and arranged on the viewpoint sorted.
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JP2003316812A JP3955002B2 (en) 2003-09-09 2003-09-09 The video display device
CN 200410068724 CN100526937C (en) 2003-09-09 2004-09-06 Video display
DE602004004020T DE602004004020T2 (en) 2003-09-09 2004-09-09 An autostereoscopic video display with slant from openings existing parallax
EP04255465A EP1515178B1 (en) 2003-09-09 2004-09-09 Autostereoscopic video display with a parallax barrier having oblique apertures
US10/936,513 US7317494B2 (en) 2003-09-09 2004-09-09 Autostereoscopic video display with a parallax barrier having oblique apertures

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